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anonymous

  • one year ago

What is the value of expression? 6−7 • 64 A. 6−3 B. 6−11 C. 6−28 D. 611

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  1. anonymous
    • one year ago
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    D. because value just means the answer

  2. anonymous
    • one year ago
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    i have 4 more questions care to help me?

  3. anonymous
    • one year ago
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    sure

  4. texaschic101
    • one year ago
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    is there an exponent in the first problem ?

  5. anonymous
    • one year ago
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    yes

  6. texaschic101
    • one year ago
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    or is it just 6 - 7 * 64 ??

  7. anonymous
    • one year ago
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    yes

  8. anonymous
    • one year ago
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    its 7

  9. texaschic101
    • one year ago
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    is it 7 or -7 ?

  10. anonymous
    • one year ago
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    -7

  11. texaschic101
    • one year ago
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    6^-7 * 64 = 1/6^7 * 64 = 1/279936 * 64 = 64/279936 = ....... wait....is the problem 6^-7 * 6^4 ??

  12. anonymous
    • one year ago
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    6-^7 the 7 is higher i think the power and also 6-^4

  13. anonymous
    • one year ago
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    What is the value of expression? 6−7 • 64

  14. texaschic101
    • one year ago
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    x^m * x^n = x^(m + n) 6^-7 * 6^4 = 6^(-7 + 4) = 6^-3

  15. anonymous
    • one year ago
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    so its a

  16. texaschic101
    • one year ago
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    but if it is : 6^-7 * 6^-4, then it is 6^(-7-4) = 6^-11

  17. texaschic101
    • one year ago
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    is the exponent 4 positive or negative

  18. anonymous
    • one year ago
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    can u help me with a few more?

  19. texaschic101
    • one year ago
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    possibly....not the best at exponents

  20. anonymous
    • one year ago
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    that's whjy im here XD

  21. anonymous
    • one year ago
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    why A. 7 B. 3 C. −3 D. −7

  22. texaschic101
    • one year ago
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    what ??

  23. anonymous
    • one year ago
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    What is the missing value? A. 7 B. 3 C. −3 D. −7

  24. texaschic101
    • one year ago
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    the missing value in what ?

  25. anonymous
    • one year ago
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    |dw:1444142734420:dw|

  26. texaschic101
    • one year ago
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    when dividing exponents with the same base, you subtract the exponents. x^m/x^n = x^(m-n) so... 7^3/7^5 = 7^(3 - 5) = 7^-2...answer is B

  27. anonymous
    • one year ago
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    i don't understand any of this XD

  28. texaschic101
    • one year ago
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    exponents have their own rules...it can be quite confusing

  29. texaschic101
    • one year ago
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    do you have anymore questions ?

  30. anonymous
    • one year ago
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    What is the missing exponent?|dw:1444143182285:dw|

  31. anonymous
    • one year ago
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    yes and i need to work on my drawing

  32. texaschic101
    • one year ago
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    (x^m)^n = x^(mn) so.. (6^5)^-4 = 6^(5*-4) = 6^-20 that was 6^-20 right ?? Or is it 6^20 ??

  33. anonymous
    • one year ago
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    6^20

  34. texaschic101
    • one year ago
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    wait...hold on...then my answer is wrong (6^-5)-4 = 6^(-5 * -4) = 6^20 answer is 6^-5

  35. anonymous
    • one year ago
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    one more question >.<

  36. texaschic101
    • one year ago
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    I am ready..lol

  37. anonymous
    • one year ago
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    |dw:1444143656111:dw|

  38. texaschic101
    • one year ago
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    (7^-3 * 7^9) / 7^-8 = ( 7^(-3 + 9) / 7^-8 = 7^6/7^-8 = 7^(6 -(-8) = 7^ (6 + 8) = 7^14

  39. anonymous
    • one year ago
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    thank you 100

  40. texaschic101
    • one year ago
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    sweet...its just a matter of following the exponent rules. I wish you luck with all this :)

  41. anonymous
    • one year ago
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    x.x i'll need more than luck for this cya

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